U.S. stock index futures were flat on Wednesday, following a sharp decline in the previous session, as investors looked ahead to a read on GDP expected to show the economy shrank in the first quarter: Dow Jones industrial average futures were down 0.06 percent at 16,742, S&P 500 futures were up 0.01 percent at 1,943.5 and Nasdaq 100 futures were down 0.07 percent at 3,792.

The owner of the University of Phoenix, which has been struggling with falling enrollments and stricter regulation, is scheduled to report third-quarter results before market opens. Investors will be watching for comments from Apollo after its peer, Corinthian Colleges, said its ability to function as a going concern was uncertain without federal aid.

** GENERAL MILLS INC, Tuesday close $53.7, -3.17 pct premarket

The food manufacturer said quarterly net sales fell 2.8 percent to $4.41 billion, while sales in its U.S. branded goods retail business fell 1 percent to $2.4 billion

** CVR REFINING LP, Tuesday close $27.14, -6.23 pct premarket

The oil and gas refining company launched a public offering of 6 million common units - representing 4 percent of its total outstanding units.

The company said net proceeds of the offering will be used to redeem its common units from CVR Refining Holdings LLP.

** PENGROWTH ENERGY CORP, Tuesday close $6.79

The Canadian oil and gas explorer said proved and probable reserves at thermal oil Lindbergh project in east central Alberta rose 61 pct in the five months to end-May.

The company said additional proved reserves rose 24 percent adding that it expects first commercial bitumen production at Lindbergh to be achieved in first quarter of 2015.

The drug developer said its single-drop eye treatment was shown to be superior to each of its two components in a mid-stage trial. The drug, Roclatan, is a combination of Aerie’s other experimental eye drug, Rhopressa, and a glaucoma medication called latanoprost.

The underwear maker said it will buy Paris-based DBApparel from Sun Capital Partners Inc in a deal valuing the company at 400 million euros ($545 million) on an enterprise basis. The cash deal values DBApparel at about 7.5 times EBITDA, Hanesbrands said.

The Department of Commerce, which has come under growing pressure to ease restrictions amid a resurgence in domestic production, has given approval via a private ruling to Pioneer Natural Resources and Enterprise Product Partners to export a light oil called condensates.

** GOLAR LNG, Tuesday close $55.3, -1.81 pct premarket

The Norwegian shipping firm priced its offering of 11 million shares - representing 14 percent of total outstanding shares - at $54 each.

** MONSANTO CO, Tuesday close $120.63

The world’s largest seed company is scheduled to report third quarter results before the bell. It reported a higher-than-expected profit in the previous quarter with its corn business on track to post record volume for the fiscal year. The company had said it expected full-year earnings of $5-5.20 per share on an ongoing basis and $5.02-5.22 on a net basis. (Compiled by Amrutha Gayathri in Bangalore; Editing by Joyjeet Das)